<template>
    <div class="login">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
            <div class="login-header">
                <h1>欢迎登录</h1>
                <p>请输入您的账号信息</p>
            </div>
            <el-form-item prop="userName">
                <el-input v-model="loginForm.userName" type="text" size="medium" auto-complete="off" placeholder="账号">
                    <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
                </el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input v-model="loginForm.password" type="password" size="medium" auto-complete="off" placeholder="密码"
                    @keyup.enter.native="handleLogin">
                    <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
                </el-input>
            </el-form-item>
            <el-form-item prop="code">
                <el-input v-model="loginForm.code" auto-complete="off" size="medium" placeholder="验证码" style="width: 63%"
                    @keyup.enter.native="handleLogin">
                    <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
                </el-input>
                <div class="login-code">
                    <img :src="codeUrl" @click="getCode" class="login-code-img" />
                </div>
            </el-form-item>
            <el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
            <el-form-item style="width: 100%">
                <el-button :loading="loading" size="medium" type="primary" style="width: 100%"
                    @click.native.prevent="handleLogin">
                    <span v-if="!loading">登 录</span>
                    <span v-else>登 录 中...</span>
                </el-button>
            </el-form-item>
        </el-form>

    </div>
</template>

<script>
import Cookies from "js-cookie";
import request from "@utils/request";
import {
    encrypt,
    decrypt
} from "@/utils/jsencrypt";
export default {
    name: "Login",
    data() {
        return {
            codeUrl: "",
            loginForm: {
                userName: "admin",
                password: "admin",
                // userName: "test",
                // password: "123456",
                rememberMe: false,
                code: "",
                uuid: "",
            },
            loginRules: {
                userName: [{
                    required: true,
                    trigger: "blur",
                    message: "请输入您的账号",
                },],
                password: [{
                    required: true,
                    trigger: "blur",
                    message: "请输入您的密码",
                },],
                code: [{
                    required: true,
                    trigger: "change",
                    message: "请输入验证码",
                },],
            },
            loading: false,
            redirect: undefined,
        };
    },
    watch: {
        $route: {
            handler: function (route) {
                this.redirect = route.query && route.query.redirect;
            },
            immediate: true,
        },
    },
    created() {
        this.getCode();
        this.getCookie();
    },
    methods: {
        getCode() {
            request({
                url: "/baseApi/captcha/captchaImage/",
                method: "get",
                params: {},
            }).then((res) => {
                this.codeUrl = "data:image/gif;base64," + res.data.img;
                this.loginForm.uuid = res.data.uuid;
            });
        },
        getCookie() {
            const userName = Cookies.get("userName");
            const password = Cookies.get("password");
            const rememberMe = Cookies.get("rememberMe");
            this.loginForm = {
                userName: userName === undefined ? this.loginForm.userName : userName,
                password: password === undefined ? this.loginForm.password : decrypt(password),
                rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
            };
        },
        handleLogin() {
            this.$refs.loginForm.validate((valid) => {
                if (valid) {
                    this.loading = true;
                    if (this.loginForm.rememberMe) {
                        Cookies.set("userName", this.loginForm.userName, {
                            expires: 30,
                        });
                        Cookies.set("password", encrypt(this.loginForm.password), {
                            expires: 30,
                        });
                        Cookies.set("rememberMe", this.loginForm.rememberMe, {
                            expires: 30,
                        });
                    } else {
                        Cookies.remove("userName");
                        Cookies.remove("password");
                        Cookies.remove("rememberMe");
                    }
                    request({
                        url: "/baseApi/login",
                        method: "get",
                        params: this.loginForm,
                    })
                        .then((res) => {
                            this.$store.dispatch("user/login", res.data);
                            this.$router.push({
                                path: this.redirect || "/",
                            });
                        })
                        .catch(() => {
                            this.loading = false;
                            this.getCode();
                        });
                }
            });
        },
    },
};
</script>

<style scoped lang="scss">
.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 28px;
    color: #1a1a1a;
    margin-bottom: 10px;
}

.login-header p {
    color: #666;
    font-size: 14px;
}

.login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/bg06.png");
    // background-size: cover;
}

.title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
}

.login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 350px;
    padding: 25px 25px 5px 25px;

    .el-input {
        height: 38px;

        input {
            height: 38px;
        }
    }

    .input-icon {
        height: 39px;
        width: 14px;
        margin-left: 2px;
    }
}

.login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
}

.login-code {
    width: 33%;
    height: 38px;
    float: right;

    img {
        cursor: pointer;
        vertical-align: middle;
    }
}

.el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
}

.login-code-img {
    height: 38px;
}
</style>